Home / 28,231.24-42,358.02-10,705.72

Finding the Fourth Proportional to 28,231.24, 42,358.02 and 10,705.72

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Solution

The fourth proportional to 28,231.24, 42,358.02 and 10,705.72 is: 16,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.24 : 42,358.02 = 10,705.72 : x
  2. Step 2: Convert to fraction form
    28,231.24/42,358.02 = 10,705.72/x
  3. Step 3: Cross multiply
    28,231.24x = 42,358.02 × 10,705.72
  4. Step 4: Simplify right side
    28,231.24x = 453,473,101.87
  5. Step 5: Solve for x
    x = 453,473,101.87/28,231.24
  6. Step 6: Final answer
    x = 16,062.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.